辅导 KXO151、讲解 Java编程设计
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KXO151 Programming & Problem Solving
AIEN-SHOU - 2025
Assignment 2
Deadline for Submission: 9PM (Shanghai) Wednesday, Week 8, 16 April 2025
Maximum Marks Available: 15 (15% of the total assessment for KXO151)
Submission: Via MyLO
NOTE: All assignments will be checked for plagiarism by a specialist Java program that checks
your assignment against other student’s assignments as well as the Internet (including help
sites).
Assignment Type: Individual
Requirements:
PLEASE NOTE: This assignment is to be completed by Students individually. If you need help, please
look at the textbook or ask your lecturer. Students who have been working through the tutorial
exercises should not have much difficulty in completing this assignment.
PLEASE NOTE: The submitted Java code must be able to be compiled from the command line using
Javac the Java programming language compiler command, or from a basic editor such as jGrasp. Be
aware that development programs such as Eclipse often use features only available when run using
their system, meaning that their code may not run on a system without their development program.
Programs that do not run from the command line using javac (to compile) and java (to run) because
of a missing development program feature will fail the assignment.
You are required to perform the following tasks:
Write a Java application program named Asst2.java which provides the user with their
'personalised ' number. The details (specifications) of this task are given below. Note that the
correctness marks you receive for your program will depend on how well it matches this
specification. If you decide to implement something that is more elaborate than specified, you should
understand that:
• There will be no marks awarded for the elaborations you have designed and penalties may
be applied for confusing/extraneous code.
• Your program must still meet the basic specifications given below.
The program is to implement a simple personalised number program. The user will be asked four
questions about themselves.
• Their family name (to be stored in a String that may not contain spaces).
• The initial (first letter) of their first given name (to be stored in a char).
• Their year of birth (to be stored in an int variable).
• Whether or not they are female (to be stored in a boolean variable).
The answers to these questions will be used to generate a ' personalised ' number (in the range of 1
to 9) for the user, this will be displayed on the screen. To calculate the ' personalised ' number,
several values will be used:
• An initial ' personalised ' number value of 5.
• A family name factor length of 5.
• Special letters ‘A’, 'S', ‘T’ and'Z'.
The user will always see one ' personalised ' number.
NOTE: Part of the assessment of your program may be done automatically, so it is important that you
follow the specification exactly, for example the questions must be asked in the order given and the
method the user is given to indicate that they want to see another fortune must be as specified.
Details
• The user will be asked to enter their family name. (Rules: The entry should not contain
spaces.)
• The user will be asked to enter the first letter of their first name.
• The user will be asked to enter the year of their birth.
• The user will be asked to enter true/false as to whether they are female.
• All the above information should then be displayed to the user in the form (with sample data
of "Clark", "J", 1989, true) of:
J.Clark (male) was born in 1989.
• The program will then work out the user's 'personalised ' number as follows:
o Starting with 5 as an initial number, if the birth year is even then the number will be
9 times (number= initial number*9).
if the birth year is odd then the number will be multiple of 3 times (number= initial
number*3).
o If the user is female, then:
§ if the initial of their first name is either of the special letters [A, S, T or Z]
then the number is 5 times (number= initial number*5); otherwise, it is 2
times (number= initial number*2).
o otherwise, for a male user
§ if the length of the family name is a multiple of 3 then the number is 6 times
(number= initial number*6); otherwise, it is 4 times (number= initial
number*4).
o Finally, the number is reduced and calculated by summing the digits of the
calculated number until a single-digit number is obtained. If the result is 0, it is set
to 1 to ensure the personalised number remains between 1 and 9.
• The Personalised number is then displayed on the screen.
• After the Personalised number has been displayed, the user is asked whether they want to
see another. To see another personalised number, they must enter the character 'y' or 'Y' (for
yes). They will then be asked for another family name, initial, year, and gender and will see
another personalised number. If they enter any letter other than 'y' or 'Y' the program will
stop.
• The user will be shown a message saying how many personalised numbers were told.
A sample output of the program is attached to the end of this document.
Program Style
The program you write for this assignment must be a single class called Asst2 with the code in a file
called Asst2.java. There should be a single method (the main() method) in this class.
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Your program should follow the coding conventions introduced in this unit and shown in the
textbook, especially:
• Variable identifiers should start with a lower-case letter
• Final variable identifiers should be written all in upper case and should be declared before
all other variables
• Every if-else statement should have a block of code for both the if part and the else part (if
used)
• Every loop should have a block of code (if used)
• The program should use final variables as much as possible
• The keyword continue should not be used
• The keyword break should only be used as part of a switch statement (if required)
• Opening and closing braces of a block should be aligned
• All code within a block should be aligned and indented 1 tab stop (approximately 4 spaces)
from the braces marking this block
Commenting:
• There should be a block of header comment which includes at least
o file name
o your name (in pinyin)
o student UTas id number
o a statement of the purpose of the program
• Each variable declaration should be commented.
• There should be a comment identifying groups of statements that do various parts of the
task.
• There should not be a comment stating what every (or nearly every) line of the code does -
as in:
num1 = num1 + 1; // add 1 to num1
Save the Output
Run your program entering data via the keyboard and save the output of your program to a text file
using your UTas student id number as the name of the file, for example, 159900.txt (in jGrasp, right
mouse-click in the ‘Run I/O’ window and select ‘Save As Text File’).
Important Notes:
• Changing a few variable names, adding different data and / or adding your name to the top
of someone else’s code does not make it your own work. See the section on ‘Plagiarism’ below.
• You need to submit 2 files:
o your Asst2.java
o a text file containing the output of your program using your UTas id number as the
name of the file, for example, 159900.txt.
o See the section on ‘Submission’ below for more information.
• Before you submit your assignment through the KXO151 MyLO website, it is suggested that
you make sure the final version of your Java program file compiles and runs as expected – do
not change the names of the java file – submit it exactly as you last compiled and ran it.
Programs that do not compile and / or run will fail the assignment. If in doubt, you can
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click on the submitted files, download them from MyLO, and check that they are the files you
think they should be.
NOTE: The higher marks are reserved for solutions that are highly distinguished from the rest and
show an understanding and ability to program using Java that is well above the average.
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Guide to Assessment and Expectations:
The assessment of Assignment 2 is based on the following criteria:
Criteria High Distinction Distinction Credit Pass Fail
Programming
Requirement
Excellent
programming ability
to correctly prompt
the user for inputs
and store them
appropriately. The
program employs a
loop structure to
repeatedly prompt
the user until they
choose to exit. The
program accurately
assesses and provide
the information as per
the requirements. It
accurately calculates
and displays the total
number of times user
asks to run the
program during the
session.
Reasonable
programming ability
to correctly prompt
the user for inputs
and store them
appropriately. The
program employs a
loop structure to
repeatedly prompt
the user until they
choose to exit. The
program reasonably
assesses and provide
the information as per
the requirements. It
accurately calculates
and displays the total
number of times user
asks to run the
program during the
session.
Good programming
ability to correctly
prompt the user for
inputs and store them
appropriately. The
program employs a
loop structure to
repeatedly prompt
the user until they
choose to exit. The
program assesses and
provide the
information as per the
requirements. It
calculates and
displays the total
number of times user
asks to run the
program during the
session.
Some user inputs are
prompted or stored
incorrectly. Loop
structure is partially
implemented or
contains minor issues.
The program
accurately assesses
some of the
requirements and
provide the
information as per the
requirements. It
partially calculates
and displays the total
number of times user
asks to run the
program during the
session.
User inputs are not
prompted or stored
correctly. Loop
structure is not
implemented or does
not function properly.
The information
assessment is
incorrect or
incomplete. Total
number of program
runs is not calculated
or displayed.
General
Requirement
Excellent evaluation
of the program's
organization and
visual presentation.
Assessment of
adherence to coding
standards such as
naming conventions,
use of constants, and
in-line comments.
Check if the program
includes the
necessary
information in its
header.
Reasonable
evaluation of the
program's
organization and
visual presentation.
Assessment of
adherence to coding
standards such as
naming conventions,
use of constants, and
in-line comments.
Check if the program
includes the
necessary
information in its
header.
Good evaluation of
the program's
organization and
visual presentation.
Assessment of
adherence to coding
standards such as
naming conventions,
use of constants, and
in-line comments.
Check if the program
includes the
necessary
information in its
header.
Some evaluation of
the program's
organization and
visual presentation.
Assessment of
adherence to coding
standards such as
naming conventions,
use of constants, and
in-line comments.
Check if the program
includes the
necessary
information in its
header.
No evaluation of the
program's
organization and
visual presentation.
Assessment of
adherence to coding
standards such as
naming conventions,
use of constants, and
in-line comments.
Check if the program
includes the
necessary
information in its
header.
Note The High Distinction grade is reserved for solutions that fully meet the requirements & are highly distinguished from
other assignments by their high-quality work & their attention to detail (usually only 10% of students).
PLEASE NOTE: The assignment will receive a single composite mark. The assignment will be accessed
from the point of view of the requirements: “Does it meet the requirements, and how well does it do
it?” Where there is some inconsistency in that the work does not completely match every sub criterion within a particular criterion, then the grade reflects the value of the work ‘on average’.
Submission:
Your completed solution (your Asst2.java file, plus a text file containing the output of your
program using your UTas id number as the name of the file, for example, 159900.txt) must be
submitted by the deadline. Assignments must be submitted electronically via KXO151 MyLO website
as files that can be read by a text editor such as Microsoft Notepad (submit the *.java file - not the
*.class file). Follow the following steps to create a package for your assignment files and then submit
your package file:
1. On your computer desktop, create a new folder using your name and UTAS ID number.
For example, if you name is Jianwen Chen and your UTAS ID number is 159900, then the
new folder must be named Jianwen_Chen_159900;
2. Copy your 2 assignment files into the new folder;
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3. Use the WinRAR application to compress the new folder and name it as *.rar. For
example, Jianwen Chen would name it as Jianwen_Chen_159900.rar.
4. Submit your *.rar file to the unit MyLO “Assessments/Assignments/Assignment 2” folder.
5. If WinRAR application is not available on your computer, try to use a similar application
to compress the new folder and name it as *.zip, and then submit the *.zip file.
Details of the actual submission procedure are available through the MyLO webpages.
Students who believe that this method of submission is unsuitable given their personal
circumstances must make alternative arrangements with their Lecturer prior to the submission date.
Extensions will only be granted under exceptional conditions and must be requested with
adequate notice on the Request for Extension forms. No extension will be provided after due
date.
In submitting your assignment, you are agreeing that you have read the ‘Plagiarism’ section below,
and that your assignment submission complies with the assignment requirement that it is your own
work.
Plagiarism
While students are encouraged to discuss the assignments in this unit and to engage in active learning
from each other, it is important that they are also aware of the University’s policy on plagiarism.
Plagiarism is taking and using someone else's thoughts, writings or inventions and representing
them as your own; for example, downloading an essay wholly or in part from the internet, copying
another student’s work or using an author’s words or ideas without citing the source.
Plagiarism is a form of cheating. It is taking and using someone else's thoughts,
writings or inventions and representing them as your own; for example, using an
author's words without putting them in quotation marks and citing the source, using
an author's ideas without proper acknowledgment and citation or copying another
student’s work.
If you have any doubts about how to refer to the work of others in your assignments,
please consult your lecturer or tutor for relevant referencing guidelines, and the
academic integrity resources on the web at: www.academicintegrity.utas.edu.au/.
The intentional copying of someone else’s work as one’s own is a serious offence
punishable by penalties that may range from a fine or deduction/cancellation of marks
and, in the most serious of cases, to exclusion from a unit, a course or the University.
Details of penalties that can be imposed are available in the Ordinance of Student
Discipline – Part 3 Academic Misconduct, see:
www.utas.edu.au/universitycouncil/legislation/
The University reserves the right to submit assignments to plagiarism detection
software, and might then retain a copy of the assignment on its database for the
purpose of future plagiarism checking.
It is important that you understand this statement on plagiarism. Should you require clarification
please see your unit coordinator or lecturer. Useful resources on academic integrity, including what
it is and how to maintain it, are also available at: www.academicintegrity.utas.edu.au/.
Working with others, including generative Generative AI tools (e.g., ChatGPT, Codex, Copilot)
One effective way to grasp principles and concepts is to discuss the issues with your peers or friends
(or even to interact with one of the many generative AI tools available now), and you are encouraged
to do this. We also encourage you to discuss aspects of practical assignments with others. However,
once you have clarified the principles of the question, you must express the expression, algorithm or
program entirely by yourself. In other words, you can discuss the question, but not the solution. Same
applies to advanced Generative AI tools, we do not encourage students solve the assignment using
advance AI tools, however, if you would like to take assistance from these AI tools to help to
understand the question, then you need to provide below detail:
If you get help from an AI tool with a programming task, add this at the top of your source file
or embed the contents (excluding the top and bottom """) into the program-level """ documentation
comment """ at the top:
"""
Acknowledgement of external assistance
Issues I got help with: WRITE 1-3 SHORT SENTENCES
Assistance received: WRITE 1-3 SHORT SENTENCES
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What I learned: WRITE 1-3 SHORT SENTENCES
"""
After the appropriate prompt write a brief summary of:
• what the problem(s) were that you needed help with;
• what assistance the external tool provided (for example, did it identify a problem in syntax,
or an issue with the approach you were using?)
• what you have learned from its suggestion(s) (which will allow you to solve such problems
yourself in future)
If you get help from an AI tool with a task where you produce a document, either upload a
separate Word or PDF containing the same details as above or, within the body of the document, add
the following with responses after each of the three prompts:
Acknowledgement of external assistance
Issues I got help with: WRITE 1-3 SHORT SENTENCES
Assistance received: WRITE 1-3 SHORT SENTENCES
What I learned: WRITE 1-3 SHORT SENTENCES
Acknowledgement
This assignment has been adapted from a programming project developed by Dr Julian Dermoudy. The assignment template
was written by Dr Dean Steer.
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Sample Output of Assignment 2, 2025
C:\KXO151>java Asst2
Welcome to personalised number generator.
This program will tell you your personalised number using your
personal information!
Please enter your family name: Chen
Please enter your first initial: Z
Please enter the year in which you were born: 2002
True or false – you are female: false
Z.Chen (male) was born in 2002.
And has a personalised number of 2
Another? n
Thank you for using Personalised number generator, you have generated
1 personalised number(s).
C:\KXO151>
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KXO151 Assignment Two Marking Scheme (2025)
Programming Requirements (for each item there are only 3 possible marks: 100% or 50% or 0%)
Requirement Item Mark
Out of
PR1. Correctly obtain inputs from user 2
PR2. Correctly display a message such as “J.Clark (male) was born in 1989.” 1
PR3. Correctly calculate and display a user’s personalised number 4
PR4. Correctly set up a loop to allow a user to play the game again 2
PR5. Correctly calculate and display the total personalised numbers given when a
user chooses to exit.
1
General Requirements (for each item there are only 3 possible marks: 100% or 50% or 0%)
General Item Mark
GN1. Program structure and layout
Clear and tidy (2). Somewhat messy but understandable (1). Messy (0.5)
2
GN2. Include name, ID, and brief introduction in the program’s header 2
GN3. Appropriate in-line comments 1
Assignment Raw Total: /15
Lateness Penalty:
Assignment Final: /15
UTAS lateness penalty policy:
“Assignments submitted after the deadline will receive a late penalty of 5% of the original available mark
for each calendar day (or part day) that the assignment is late. Late submissions will not be accepted more
than 10 calendar days after the due date, or after assignments have been returned to other students on a
scheduled date, whichever occurs first.”